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2015-2021 WRX & STI Mods

GrimmSpeed Red Electronic Boost Control Cover 2008-2021 STI

$62.00
$62.00 - $62.00
$62.00
$62.00 - $62.00

DESCRIPTION We decided on a subtle design for this cover that mimics the “vent” styling on our matching GrimmSpeed Alternator Cover. Is it made fro...

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GrimmSpeed Head Gasket Set 2015-2021 WRX

$182.00
$182.00 - $182.00
$182.00
$182.00 - $182.00

DESCRIPTION Feature-packed, these gaskets are a perfect fit for any engine build, from basic refresh to a high horsepower track monster. The GrimmS...

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GrimmSpeed Black Pulley Cover 2015-2021 WRX

$99.00
$99.00 - $99.00
$99.00
$99.00 - $99.00

DESCRIPTION Our Pulley Cover is precision laser cut and CNC bent from locally-sourced material and each cover receives a durable powdercoat finish....

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GrimmSpeed Black Fender Shrouds 2015-2021 WRX / 2015-2021 STI

$99.00
$99.00 - $99.00
$99.00
$99.00 - $99.00

DESCRIPTION Do away with the flimsy, boring factory fabric shrouds and make your engine bay stand out with the brand new GrimmSpeed Fender Shrouds....

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GrimmSpeed Black Lightweight Crank Pulley 2015-2021 WRX

$149.00
$149.00 - $149.00
$149.00
$149.00 - $149.00

DESCRIPTION The GrimmSpeed Lightweight Crank Pulley reduces the rotational mass of the system, allowing your engine to accelerate and decelerate th...

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GrimmSpeed Stage 1 Power Package 2015-2021 STI

$465.00
$465.00 - $465.00
$465.00
$465.00 - $465.00

DESCRIPTION The GrimmSpeed Stage 1 Power Package combines GrimmSpeed's Cold Air Intake System, as well as the GrimmSpeed 3-Port Electronic Boost Co...

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If you own a Subaru WRX STI, you know you have the perfect platform to craft a masterpiece on wheels. At WRXDaily, we understand that every enthusiast has a vision, and we’re here to offer the WRX STI mods you need to bring yours to life. With products tailored to elevate performance, enhance style, and perfect handling, our curated selection puts endless possibilities at your fingertips. 

No matter what you need, our Subaru WRX STI modifications deliver quality and reliability you can trust. From high-performance upgrades to must-have Subaru STI accessories, we have everything you need to create a car that’s as bold and unique as your passion for driving. Own a 2018 WRX? We offer a variety of 2018 WRX parts designed to fit your specific model. 

With WRXDaily, your Subaru becomes a true reflection of your style and ambition. Browse our selection of WRX STI mods today and start your next build!